define(function (require, exports, module) {
    return function (jQuery) {
        /*
         * jQuery Iframe Transport Plugin 1.4
         * https://github.com/blueimp/jQuery-File-Upload
         *
         * Copyright 2011, Sebastian Tschan
         * https://blueimp.net
         *
         * Licensed under the MIT license:
         * http://www.opensource.org/licenses/MIT
         */

        /*jslint unparam: true, nomen: true */
        /*global define, window, document */


        (function ($) {
            'use strict';

            // Helper variable to create unique names for the transport iframes:
            var counter = 0;

            // The iframe transport accepts three additional options:
            // options.fileInput: a jQuery collection of file input fields
            // options.paramName: the parameter name for the file form data,
            //  overrides the name property of the file input field(s),
            //  can be a string or an array of strings.
            // options.formData: an array of objects with name and value properties,
            //  equivalent to the return data of .serializeArray(), e.g.:
            //  [{name: 'a', value: 1}, {name: 'b', value: 2}]
            $.ajaxTransport('iframe', function (options) {
                if (options.async && (options.type === 'POST' || options.type === 'GET')) {
                    var form,
                        iframe;
                    return {
                        send: function (_, completeCallback) {
                            form = $('<form style="display:none;"></form>');
                            // javascript:false as initial iframe src
                            // prevents warning popups on HTTPS in IE6.
                            // IE versions below IE8 cannot set the name property of
                            // elements that have already been added to the DOM,
                            // so we set the name along with the iframe HTML markup:
                            iframe = $(
                                '<iframe src="javascript:false;" name="iframe-transport-' +
                                    (counter += 1) + '"></iframe>'
                            ).bind('load', function () {
                                var fileInputClones,
                                    paramNames = $.isArray(options.paramName) ?
                                            options.paramName : [options.paramName];
                                iframe
                                    .unbind('load')
                                    .bind('load', function () {
                                        var response;
                                        // Wrap in a try/catch block to catch exceptions thrown
                                        // when trying to access cross-domain iframe contents:
                                        try {
                                            response = iframe.contents();
                                            // Google Chrome and Firefox do not throw an
                                            // exception when calling iframe.contents() on
                                            // cross-domain requests, so we unify the response:
                                            if (!response.length || !response[0].firstChild) {
                                                throw new Error();
                                            }
                                        } catch (e) {
                                            response = undefined;
                                        }
                                        // The complete callback returns the
                                        // iframe content document as response object:
                                        completeCallback(
                                            200,
                                            'success',
                                            { 'iframe': response }
                                        );
                                        // Fix for IE endless progress bar activity bug
                                        // (happens on form submits to iframe targets):
                                        $('<iframe src="javascript:false;"></iframe>')
                                            .appendTo(form);
                                        form.remove();
                                    });
                                form
                                    .prop('target', iframe.prop('name'))
                                    .prop('action', options.url)
                                    .prop('method', options.type);
                                if (options.formData) {
                                    $.each(options.formData, function (index, field) {
                                        $('<input type="hidden"/>')
                                            .prop('name', field.name)
                                            .val(field.value)
                                            .appendTo(form);
                                    });
                                }
                                if (options.fileInput && options.fileInput.length &&
                                        options.type === 'POST') {
                                    fileInputClones = options.fileInput.clone();
                                    // Insert a clone for each file input field:
                                    options.fileInput.after(function (index) {
                                        return fileInputClones[index];
                                    });
                                    if (options.paramName) {
                                        options.fileInput.each(function (index) {
                                            $(this).prop(
                                                'name',
                                                paramNames[index] || options.paramName
                                            );
                                        });
                                    }
                                    // Appending the file input fields to the hidden form
                                    // removes them from their original location:
                                    form
                                        .append(options.fileInput)
                                        .prop('enctype', 'multipart/form-data')
                                        // enctype must be set as encoding for IE:
                                        .prop('encoding', 'multipart/form-data');
                                }
                                form.submit();
                                // Insert the file input fields at their original location
                                // by replacing the clones with the originals:
                                if (fileInputClones && fileInputClones.length) {
                                    options.fileInput.each(function (index, input) {
                                        var clone = $(fileInputClones[index]);
                                        $(input).prop('name', clone.prop('name'));
                                        clone.replaceWith(input);
                                    });
                                }
                            });
                            form.append(iframe).appendTo(document.body);
                        },
                        abort: function () {
                            if (iframe) {
                                // javascript:false as iframe src aborts the request
                                // and prevents warning popups on HTTPS in IE6.
                                // concat is used to avoid the "Script URL" JSLint error:
                                iframe
                                    .unbind('load')
                                    .prop('src', 'javascript'.concat(':false;'));
                            }
                            if (form) {
                                form.remove();
                            }
                        }
                    };
                }
            });

            // The iframe transport returns the iframe content document as response.
            // The following adds converters from iframe to text, json, html, and script:
            $.ajaxSetup({
                converters: {
                    'iframe text': function (iframe) {
                        return $(iframe[0].body).text();
                    },
                    'iframe json': function (iframe) {
                        return $.parseJSON($(iframe[0].body).text());
                    },
                    'iframe html': function (iframe) {
                        return $(iframe[0].body).html();
                    },
                    'iframe script': function (iframe) {
                        return $.globalEval($(iframe[0].body).text());
                    }
                }
            });

        })(jQuery);

    }
});